RUBBER WIPER BLADE ELEMENT WITH FRICTION REDUCING AGENT THAT CONTINUOUSLY MIGRATES TO THE SURFACE
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United States of America Patent
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Issued Date -
Jun 13, 2019
app pub date -
Feb 14, 2019
filing date -
Jun 11, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A windscreen wiper device is provided including a longitudinally extending wiper strip of a flexible material. At least one carrier of a spring-like material operatively supports and biases the wiper strip into a predetermined configuration. The windscreen wiper device further includes a connecting device for connection with a wiper arm. The flexible material is formed of flexible material, such as rubber, with a friction reducing agent consisting of at least one amide distributed homogeneously throughout the flexible material. Upon vulcanization, a portion of the friction reducing agent migrates to an outer surface of the flexible material to form a friction reducing film having hydrophobic properties. The friction reducing film provides a low friction interface between the flexible material and a windshield under wet and dry conditions. The low friction minimizes the load on the wiper device and thus extends the life of the wiper device.
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